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  • Consider a mixture of benzene and toluene. Which of the following statements is true regarding the relation between Raoult's law and Dalton's law for this mixture?<div class='

Consider a mixture of benzene and toluene. Which of the following statements is true regarding the relation between Raoult's law and Dalton's law for this mixture?

Option: 1

Raoult's law is obeyed but Dalton's law is not obeyed.
 


Option: 2

Dalton's law is obeyed but Raoult's law is not obeyed.
 


Option: 3

Both Raoult's law and Dalton's law are obeyed.

 


Option: 4

Neither Raoult's law nor Dalton's law is obeyed.


Answers (1)

best_answer

Raoult's law states that the partial vapor pressure of each component of an ideal solution is directly proportional to its mole fraction in the solution. Dalton's law states that the total pressure of a mixture of gases is equal to the sum of the partial pressures of the individual gases. In the case of a mixture of benzene and toluene, both Raoult's law and Dalton's law are obeyed. The total vapor pressure of the mixture is the sum of the partial vapor pressures of benzene and toluene, which are proportional to their respective mole fractions in the mixture. Therefore, option (c) is the correct answer.Option (a) is incorrect because Raoult's law is obeyed for the mixture. Option (b) is incorrect because Dalton's law is obeyed for the mixture. Option (d) is incorrect because both laws are obeyed for the mixture.

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shivangi.bhatnagar

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